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It wont find anything my ZX-1 doesn't pick up on but it helps pinpoint a larger leak in a confined space.
FWIW melting ice sounds just like a leak.
Still waiting for a windy roof to try it on which it should prove priceless!!!!

they claim that wind doesnt effect it nor sounds from motors and such..it seemed to pick up really smal leaks in the booth and not effected by surrounding sounds but wasnt sure if it would work as well in confined spaces in the field etc..

not sure if its worth 300 bucks if it isnt better then what i have now but if it even found one leak my sniffer couldnt and got me a big job, it might be worth it..

As it turns out mine is more affected by "ultrasonic" sounds in the field than they make it sound. I got the automotive version off ebay for around 100 bucks. Besides hitting the tip in a confined space and blowing the headphones off your ears working around a commercial dishwasher has been the worst. Pin pointing line set leaks has been its strongest point so far for me which has been well worth it so far.

As it turns out mine is more affected by "ultrasonic" sounds in the field than they make it sound. I got the automotive version off ebay for around 100 bucks. Besides hitting the tip in a confined space and blowing the headphones off your ears working around a commercial dishwasher has been the worst. Pin pointing line set leaks has been its strongest point so far for me which has been well worth it so far.

thanks for 100bucks it would be worth having..do you have a link to that type?

I have found one task that ultrasonic detection is exceptionally effective in, that being since a gnat sphincter's resonant frequency falls within the 37.5-51.6 khz range finding flatulent gnats is now wonderfully easy to the point of almost being fun. All other uses in my experience have been lackluster at best.

It's not what you're capable of doing that defines you, it's what you do on a daily basis.

I have an old Amprobe one, I think, with the headset and a hollow tube and a sensor for vibration. I hardly use it but when I find I need to it's always found a lead where my other standard refrigerant leak dectors don't. It's worth the money to me but you have to learn how to use it and have patience. Background noise makes no difference.

"The American Republic will endure until the day Congress discovers it can bribe the public with the public's own money.
- Alexis﻿ de Toqueville, 1835